scichart
Version:
Fast WebGL JavaScript Charting Library and Framework
44 lines (43 loc) • 1.75 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.RenderSurface = void 0;
var app_1 = require("../../constants/app");
var WebGlHelper_1 = require("../../Core/WebGlHelper");
var WebGlRenderContext2D_1 = require("./WebGlRenderContext2D");
/**
* @ignore
*/
var RenderSurface = /** @class */ (function () {
function RenderSurface(webAssemblyContext, size, canvasId) {
this.webAssemblyContext = webAssemblyContext;
this.viewportSize = size;
this.canvasId = canvasId;
}
RenderSurface.prototype.getRenderContext = function () {
if (!this.renderContextProperty) {
this.renderContextProperty = new WebGlRenderContext2D_1.WebGlRenderContext2D(this.webAssemblyContext, this.viewportSize, this.canvasId);
}
return this.renderContextProperty;
};
// Step_2: Something is changed and it calls invalidateElement
RenderSurface.prototype.invalidateElement = function (canvasId) {
var _a;
if (app_1.IS_TEST_ENV) {
// Don't try and draw in tests
return;
}
//console.log("Invalidate");
// Prevent drawing request when WebGL context is lost
if ((_a = WebGlHelper_1.WebGlHelper.getContext(this.webAssemblyContext.canvas)) === null || _a === void 0 ? void 0 : _a.isContextLost()) {
return;
}
this.webAssemblyContext.TSRRequestCanvasDraw(canvasId);
};
// Step_3: TRSEngine call draw
RenderSurface.prototype.onRenderTimeElapsed = function () {
this.handleDraw();
this.renderContextProperty = undefined;
};
return RenderSurface;
}());
exports.RenderSurface = RenderSurface;